The M3RINO.XC Ultralight is made with Bluesign Certified merino wool. Merino's natural anti-microbial properties keep the socks from acquiring too much of an odor, even after a couple uses. A feature like this can come in handy on multi-day tours or bikepacking trips. . Teko also built light cushion into the heel and toe to absorb fatigue-inducing shock and vibration.

The fit is Teko's Evolution, a snug fit that focuses targeted support in the arch area. Teko's shrink-resistant treatment ensures the same fit on day 192 that you had the first time you put the sock on your foot.

The Teko M3RINO.XC Pro Ultralight Sock comes in four sizes: Small through X-Large. It's available in Charcoal/red.